(19)
(11) EP 1 128 182 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
28.01.2004 Bulletin 2004/05

(43) Date of publication A2:
29.08.2001 Bulletin 2001/35

(21) Application number: 01301697.7

(22) Date of filing: 26.02.2001
(51) International Patent Classification (IPC)7: G01N 27/447
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 28.02.2000 JP 2000056042

(71) Applicant: Hitachi, Ltd.
Chiyoda-ku, Tokyo 101-8010 (JP)

(72) Inventors:
  • Shoji, Tomohiro
    Hitachinaka-shi Ibaraki 312-0033 (JP)
  • Okishima, Yoshiyuki
    Higashiibaraki-gun Ibaraki 319-0102 (JP)
  • Kojima, Masaya
    Mito-shi, Ibaraki 310-0012 (JP)
  • Maeshima, Muneo
    Mito-shi, Ibaraki 311-4145 (JP)

(74) Representative: Paget, Hugh Charles Edward et al
MEWBURN ELLIS York House 23 Kingsway
London WC2B 6HP
London WC2B 6HP (GB)

   


(54) Electrophoretic method and electrophoretic instrument therefor


(57) An injection syringe 14 for injecting a gel into a capillary 111, a charging syringe 15 for charging the injection syringe 14 with the gel 10 are attached to a block 17. A check valve 16 is inserted between the both syringes, and the check valve 16 works so as to prevent the gel 10 from flowing back to the charging syringe 15. As the result, the gel charging can be automated, and accordingly the processing ability of the electrophoretic instrument can be improved.






Search report